And this is a bad thing how?

Pieces like this remind us that the political establishment – including the press – really hates the idea of having two different political parties that actually disagree about stuff, and maybe even provides an actual real choice for voters. It’s much better when people are elected on personality and image, and the consensus policies of the Wise Old Men Of Washington can be implemented without any troubling disagreement or, god forbid, notice by the voters.

A 10-term congressman and founding member of the centrist Blue Dog coalition was trounced by a newcomer, Matt Cartwright, a Scranton lawyer who ran hard against Mr. Holden’s moderate voting record.

The ouster of the Democratic incumbents – and the tough primaries being waged against some House Republicans – suggest that redistricting ultimately is going to send more liberal Democrats and more conservative Republicans to the House.

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With the defeat of Mr. Altmire and Mr. Holden, a Blue Dog coalition of conservative Democrats that peaked in 2010 at 54 dipped prospectively to 23.

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The result “shows clearly that a Democrat beholden to special interests is going to have a tough time convincing voters he represents their interests,” said Daniel Mintz, national director of coordinated campaigns for the liberal group MoveOn.org, which joined the fray for Mr. Cartwright.

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Harry McGrath, the Lackawanna County Democratic Party chairman, said the anti-incumbent sentiment that helped fuel the Tea Party’s rise in 2010 is still alive. Down the ballot, two state representatives also lost their primaries, as did a veteran former county commissioner who was supposed to breeze into the Democratic nomination for state representative.

He also pointed to something else: angry women, still upset over measures like Pennsylvania’s efforts to mandate invasive ultrasounds before abortions. Former Representative Patrick Murphy had the backing of Mayor Michael A. Nutter of Philadelphia and former Gov. Ed Rendell in his quest to be Pennsylvania’s attorney general. He was expected to dominate Philadelphia and its suburbs, then knock off his Democratic rival, Kathleen Kane, a former Lackawanna County assistant district attorney. But Ms. Kane won with the backing of fed-up women, Mr. McGrath said.